巻号一覧
22 巻, 8 号
選択された号の論文の12件中1～12を表示しています
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巾着網の日別漁獲量の頻度分布について飯高 勇之助1956 年 22 巻 8 号 p. 455-458
発行日: 1956/12/25
公開日: 2008/02/29
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岩井 保1956 年 22 巻 8 号 p. 459-462
発行日: 1956/12/25
公開日: 2008/02/29
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アコヤガイとイケチョウガイの各組織よりSulfomucopolysaccharidesの分離堀口 吉重1956 年 22 巻 8 号 p. 463-466
発行日: 1956/12/25
公開日: 2008/02/29
ジャーナル フリーIn order to establish whether sulfomucopolysaccharide and sulfatase participate in the formation of the pearl and shell, the amount of crude sulfomucopolysaccharides in various organs of Pteria(Pinctada) martensii (DUNKER) and of Hyriopsis schlegelii (V. MARTENS) was measured by themethod of MEYER, and the chemical composition of them was investigated. The amounts of crudesulfomuco-polysaccharides were about 36 per cent in dried matter of mantle mucilage, 8.7 per cent in adductor muscle, and less than 3 per cent in other organs of Pteria (Pinctada) martensii(DUNKER), and 13.6 per cent in mantle, 12.5 per cent in viscera etc., and less than 1 per centin gill of Hyriopsis schlegelii (V. MARTENS), respectively. Crude sulfomucopolysaccharide of Pteria (Pinctada) martensii (DUNKER) contains nitrogen, hexosamine, reducing sugar, sulfateand calcium, while that of Hyriopsis schlegelii (V. MARTENS) contains reducing sugar, sulfate, calcium and traces of nitrogen and hexosamine. From the fact that plenty of sulfomucopolysaccharide was found specially in mucilage of the mantle, the secretory organ for the shell matter, it may be considered more probable than before that sulfornucopolysaccharide participates in theformation of the shell and the pearl.抄録全体を表示PDF形式でダウンロード (334K) -
尾形 英二1956 年 22 巻 8 号 p. 467-470
発行日: 1956/12/25
公開日: 2008/02/29
ジャーナル フリーWhile the visual estimation of the TTC reduction by Gracilaria was almost impossible dueto its dark reddish-brown colour and compactly parenchymatous structure, it was found effective to employ the quantitative determination of the formazan production by the optical density measurement at 490mμ following the extract with toluene (Fig. 1). Using 0.2g. in fresh weight of material, incubation for 3 hours at 30°C. in 1mg./cc. solution of TTC gave desirable results (Fig. 2). Illumination and evacuation were not indispensable (Table 2). Differences were also distinguishable by visual comparison of the extracts in their colour gradation.
Significantly serious injury discriminated by the above procedure, was caused by copper sulfate of 10-5M or above (Table 3), exposure to diluted salinity of 25% or below (Table 4), elevated temperature of 31°C (Table 1 and 5) and 66% relative humidity for 3 days or over (Table 6), leading to death after 5 days.抄録全体を表示PDF形式でダウンロード (308K) -
黒変の成因について柿本 大壱, 金沢 昭夫1956 年 22 巻 8 号 p. 471-475
発行日: 1956/12/25
公開日: 2008/02/29
ジャーナル フリーThe cause of black discoloration of a lobster, Panulirus japonicus, was investigated and the following reselts were obtained.
1) The black discoloration was confirmed to be due to the black pigments formed by the action of an enzyme in blood on a certain constituent of the liver, as shown in Table 1.
2) The darkening, which ocurred in the mixture of blood and liver, was found to be not influenced by light (Table 2) and to be most marked at about pH 7. Below pH 4, the darkening was not recognized (Table 3).
3) As shown in Diagram 1, the black pigments were separated from the incubated mixture of blood and liver by the method of melanin separation. The black pigment II was further dividable into two pigments with their solubility in N/5 HC1 and gave two spots in paper chromatography. On the other hand, the black pigment separated from the mixture of blood and L-tyrosine was insoluble in the solvent and gave only one spot. The absorption curves of these pigments, however, very slightly differed each other, as shown in Fig. 1.抄録全体を表示PDF形式でダウンロード (332K) -
チロジナーゼの分布と黒変との関係柿本 大壱, 金沢 昭夫1956 年 22 巻 8 号 p. 476-479
発行日: 1956/12/25
公開日: 2008/02/29
ジャーナル フリーSucceeding to the previous paper, the distribution of tyrosine_and tyrosinase in organs of a lobster, Panulirus japonicus, was examined to elucidate the relation between the darkening and tyrosinase activity.
1) On the tyrosinase activity, blood was found to be most powerful and in other organs the activity was in the order of stomach, intestines, liver, gonad and muscle (Fig. 1).
2) The content of free tyrosine was higher in liver, gonad and stomach, and no free tyrosine was detected in blood (Table 1).
3) Among several substances known as inhibitor for tyrosinase, p-aminobenzoic acid revealed an inhibitory effect on the darkening reaction, as shown in Table 3. Namely, it failed to inhibit the darkening of the mixture of blood and liver, whereas it effectively inhibited the reaction in the combination of blood and L-tyrosine.抄録全体を表示PDF形式でダウンロード (263K) -
煮熟臭の発生部分及び発臭抑制について山西 貞, 山下 幸子, 山崎 明子, 徳江 洋子1956 年 22 巻 8 号 p. 480-485
発行日: 1956/12/25
公開日: 2008/02/29
ジャーナル フリーThe characteristic odorous substance (sulfur containing amine with piperidine nucleous) was formed when water extract of squid meat was boiled, but it was not formed from skin nor non-protein extract of the meat. From non-protein extract only trimethylamine and ammonia were produced.
When chopped squid meat was treated with each of acid, alkali, hydrogenperoxide, ferulic acid and vanillal acetone before boiling, the characteristic odour was weakened or not produced.
If chopped squid meat was stored at -24 ?? 25°C for about half a year, the characteristic odour was produced only slightly when it was boiled. Perhaps a certain denaturation occurred and, as a result development of the characteristic odour was supressed.
It was considered that the mother substance of characteristic odour of boiled squid meat was principally water soluble protein or low molecular substance which strongly adsorbed in the protein.抄録全体を表示PDF形式でダウンロード (404K) -
雨イカの悪臭成分について山西 貞, 三浦 和子1956 年 22 巻 8 号 p. 486-489
発行日: 1956/12/25
公開日: 2008/02/29
ジャーナル フリーRain spoilt dried-squid is a product of low quality produced when squid meat is exposed to rain during drying process, and has an offensive odour.
The unpleasant odorous substances were extracted from rain spoilt dried-squid with 70% ethanol. They were separated into acidic and basic parts.
From the acidic part, a substance with strongly offensive odour characteristic to rain spoilt dried-squid, a kind of unsaturated fatty acid, was obtained. Formic, acetic, and i-butyric acid were also found by paper chromatography.
From the basic part, ammonia, trimethylamine, piperidine, indole, and two unknown amines were recognized by paper chromatography.抄録全体を表示PDF形式でダウンロード (281K) -
普通肉油および血合肉油について露木 秀雄1956 年 22 巻 8 号 p. 490-494
発行日: 1956/12/25
公開日: 2008/02/29
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4月に漁獲された数尾のブリの各部に含有せられる油脂の性状露木 秀雄, 奥野 稔1956 年 22 巻 8 号 p. 495-499
発行日: 1956/12/25
公開日: 2008/02/29
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ビタミンA濃縮物のエステル化(其の2)ケテンによるアセチル化東 秀雄, 衣巻 豊輔1956 年 22 巻 8 号 p. 500-503
発行日: 1956/12/25
公開日: 2008/02/29
ジャーナル フリーAcetylation of vitamin A concentrate was examined, using ketene (CH=C=O) prepared in the generator illustrated in fig. 1. In the generator, vapour of refluxing acetone came in contact with a glowing grid of resistance wire and underwent cracking to produce ketene, CH4, CO etc., and the ketene evolved in the gas stream along with CH4 and CO was bubbled through the benzene solution of vitamin A concentrate.
The following results were obtained.
1). At room temperature, ketene reacted readily with vitamin A concentrate to give its acetate, and no catalyst was needed for this reaction.
2). The amount of ketene to complete acetylation was one mole per one OH group of vitamin A concentrate to be acetylated.
3). The loss of vitamin A due to destruction scarcely occurred in this method.
4). This method of acetylation was far simpler and more economical in the technique and operation than that with acetyl chloride and pyridine.抄録全体を表示PDF形式でダウンロード (270K) -
1956 年 22 巻 8 号 p. 509
発行日: 1956年
公開日: 2008/04/22
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